mirror of
https://gitlab.freedesktop.org/cairo/cairo.git
synced 2026-03-21 23:50:38 +01:00
ce0b136a44
If we are dithering on the Xlib backend we can not simply repaint the surface used for a solid pattern and must recreate it from scratch. However, for ordinary XRender usage we do not want to have to pay that price - so query the backend to see if we can reuse the surface.
342 lines
9.8 KiB
C
342 lines
9.8 KiB
C
/* cairo - a vector graphics library with display and print output
|
|
*
|
|
* Copyright © 2005 Red Hat, Inc
|
|
*
|
|
* This library is free software; you can redistribute it and/or
|
|
* modify it either under the terms of the GNU Lesser General Public
|
|
* License version 2.1 as published by the Free Software Foundation
|
|
* (the "LGPL") or, at your option, under the terms of the Mozilla
|
|
* Public License Version 1.1 (the "MPL"). If you do not alter this
|
|
* notice, a recipient may use your version of this file under either
|
|
* the MPL or the LGPL.
|
|
*
|
|
* You should have received a copy of the LGPL along with this library
|
|
* in the file COPYING-LGPL-2.1; if not, write to the Free Software
|
|
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
|
* You should have received a copy of the MPL along with this library
|
|
* in the file COPYING-MPL-1.1
|
|
*
|
|
* The contents of this file are subject to the Mozilla Public License
|
|
* Version 1.1 (the "License"); you may not use this file except in
|
|
* compliance with the License. You may obtain a copy of the License at
|
|
* http://www.mozilla.org/MPL/
|
|
*
|
|
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY
|
|
* OF ANY KIND, either express or implied. See the LGPL or the MPL for
|
|
* the specific language governing rights and limitations.
|
|
*
|
|
* The Original Code is the cairo graphics library.
|
|
*
|
|
* The Initial Developer of the Original Code is Red Hat, Inc.
|
|
*
|
|
* Contributor(s):
|
|
* Carl Worth <cworth@cworth.org>
|
|
*/
|
|
|
|
/* This isn't a "real" surface, but just something to be used by the
|
|
* test suite to help exercise the meta-surface paths in cairo.
|
|
*
|
|
* The defining feature of this backend is that it uses a meta surface
|
|
* to record all operations, and then replays everything to an image
|
|
* surface.
|
|
*
|
|
* It's possible that this code might serve as a good starting point
|
|
* for someone working on bringing up a new meta-surface-based
|
|
* backend.
|
|
*/
|
|
|
|
#include "cairoint.h"
|
|
|
|
#include "test-meta-surface.h"
|
|
|
|
#include "cairo-meta-surface-private.h"
|
|
|
|
typedef struct _test_meta_surface {
|
|
cairo_surface_t base;
|
|
|
|
/* This is a cairo_meta_surface to record all operations. */
|
|
cairo_surface_t *meta;
|
|
|
|
/* And this is a cairo_image_surface to hold the final result. */
|
|
cairo_surface_t *image;
|
|
|
|
cairo_bool_t image_reflects_meta;
|
|
} test_meta_surface_t;
|
|
|
|
static const cairo_surface_backend_t test_meta_surface_backend;
|
|
|
|
static cairo_int_status_t
|
|
_test_meta_surface_show_page (void *abstract_surface);
|
|
|
|
cairo_surface_t *
|
|
_cairo_test_meta_surface_create (cairo_content_t content,
|
|
int width,
|
|
int height)
|
|
{
|
|
test_meta_surface_t *surface;
|
|
cairo_status_t status;
|
|
|
|
surface = malloc (sizeof (test_meta_surface_t));
|
|
if (unlikely (surface == NULL)) {
|
|
status = _cairo_error (CAIRO_STATUS_NO_MEMORY);
|
|
goto FAIL;
|
|
}
|
|
|
|
_cairo_surface_init (&surface->base, &test_meta_surface_backend,
|
|
content);
|
|
|
|
surface->meta = _cairo_meta_surface_create (content, width, height);
|
|
status = cairo_surface_status (surface->meta);
|
|
if (status)
|
|
goto FAIL_CLEANUP_SURFACE;
|
|
|
|
surface->image = _cairo_image_surface_create_with_content (content,
|
|
width, height);
|
|
status = cairo_surface_status (surface->image);
|
|
if (status)
|
|
goto FAIL_CLEANUP_META;
|
|
|
|
surface->image_reflects_meta = FALSE;
|
|
|
|
return &surface->base;
|
|
|
|
FAIL_CLEANUP_META:
|
|
cairo_surface_destroy (surface->meta);
|
|
FAIL_CLEANUP_SURFACE:
|
|
free (surface);
|
|
FAIL:
|
|
return _cairo_surface_create_in_error (status);
|
|
}
|
|
|
|
static cairo_status_t
|
|
_test_meta_surface_finish (void *abstract_surface)
|
|
{
|
|
test_meta_surface_t *surface = abstract_surface;
|
|
|
|
cairo_surface_destroy (surface->meta);
|
|
cairo_surface_destroy (surface->image);
|
|
|
|
return CAIRO_STATUS_SUCCESS;
|
|
}
|
|
|
|
static cairo_status_t
|
|
_test_meta_surface_acquire_source_image (void *abstract_surface,
|
|
cairo_image_surface_t **image_out,
|
|
void **image_extra)
|
|
{
|
|
test_meta_surface_t *surface = abstract_surface;
|
|
cairo_status_t status;
|
|
|
|
if (! surface->image_reflects_meta) {
|
|
status = _test_meta_surface_show_page (abstract_surface);
|
|
if (status)
|
|
return status;
|
|
}
|
|
|
|
return _cairo_surface_acquire_source_image (surface->image,
|
|
image_out, image_extra);
|
|
}
|
|
|
|
static void
|
|
_test_meta_surface_release_source_image (void *abstract_surface,
|
|
cairo_image_surface_t *image,
|
|
void *image_extra)
|
|
{
|
|
test_meta_surface_t *surface = abstract_surface;
|
|
|
|
_cairo_surface_release_source_image (surface->image,
|
|
image, image_extra);
|
|
}
|
|
|
|
static cairo_int_status_t
|
|
_test_meta_surface_show_page (void *abstract_surface)
|
|
{
|
|
test_meta_surface_t *surface = abstract_surface;
|
|
cairo_status_t status;
|
|
|
|
if (surface->image_reflects_meta)
|
|
return CAIRO_STATUS_SUCCESS;
|
|
|
|
status = _cairo_meta_surface_replay (surface->meta, surface->image);
|
|
if (status)
|
|
return status;
|
|
|
|
surface->image_reflects_meta = TRUE;
|
|
|
|
return CAIRO_STATUS_SUCCESS;
|
|
}
|
|
|
|
static cairo_int_status_t
|
|
_test_meta_surface_intersect_clip_path (void *abstract_surface,
|
|
cairo_path_fixed_t *path,
|
|
cairo_fill_rule_t fill_rule,
|
|
double tolerance,
|
|
cairo_antialias_t antialias)
|
|
{
|
|
test_meta_surface_t *surface = abstract_surface;
|
|
|
|
return _cairo_surface_intersect_clip_path (surface->meta,
|
|
path, fill_rule,
|
|
tolerance, antialias);
|
|
}
|
|
|
|
static cairo_int_status_t
|
|
_test_meta_surface_get_extents (void *abstract_surface,
|
|
cairo_rectangle_int_t *rectangle)
|
|
{
|
|
test_meta_surface_t *surface = abstract_surface;
|
|
|
|
surface->image_reflects_meta = FALSE;
|
|
|
|
return _cairo_surface_get_extents (surface->image, rectangle);
|
|
}
|
|
|
|
static cairo_int_status_t
|
|
_test_meta_surface_paint (void *abstract_surface,
|
|
cairo_operator_t op,
|
|
const cairo_pattern_t *source,
|
|
cairo_rectangle_int_t *extents)
|
|
{
|
|
test_meta_surface_t *surface = abstract_surface;
|
|
|
|
surface->image_reflects_meta = FALSE;
|
|
|
|
return _cairo_surface_paint (surface->meta, op, source, extents);
|
|
}
|
|
|
|
static cairo_int_status_t
|
|
_test_meta_surface_mask (void *abstract_surface,
|
|
cairo_operator_t op,
|
|
const cairo_pattern_t *source,
|
|
const cairo_pattern_t *mask,
|
|
cairo_rectangle_int_t *extents)
|
|
{
|
|
test_meta_surface_t *surface = abstract_surface;
|
|
|
|
surface->image_reflects_meta = FALSE;
|
|
|
|
return _cairo_surface_mask (surface->meta, op, source, mask, extents);
|
|
}
|
|
|
|
static cairo_int_status_t
|
|
_test_meta_surface_stroke (void *abstract_surface,
|
|
cairo_operator_t op,
|
|
const cairo_pattern_t *source,
|
|
cairo_path_fixed_t *path,
|
|
cairo_stroke_style_t *style,
|
|
cairo_matrix_t *ctm,
|
|
cairo_matrix_t *ctm_inverse,
|
|
double tolerance,
|
|
cairo_antialias_t antialias,
|
|
cairo_rectangle_int_t *extents)
|
|
{
|
|
test_meta_surface_t *surface = abstract_surface;
|
|
|
|
surface->image_reflects_meta = FALSE;
|
|
|
|
return _cairo_surface_stroke (surface->meta, op, source,
|
|
path, style,
|
|
ctm, ctm_inverse,
|
|
tolerance, antialias, extents);
|
|
}
|
|
|
|
static cairo_int_status_t
|
|
_test_meta_surface_fill (void *abstract_surface,
|
|
cairo_operator_t op,
|
|
const cairo_pattern_t *source,
|
|
cairo_path_fixed_t *path,
|
|
cairo_fill_rule_t fill_rule,
|
|
double tolerance,
|
|
cairo_antialias_t antialias,
|
|
cairo_rectangle_int_t *extents)
|
|
{
|
|
test_meta_surface_t *surface = abstract_surface;
|
|
|
|
surface->image_reflects_meta = FALSE;
|
|
|
|
return _cairo_surface_fill (surface->meta, op, source,
|
|
path, fill_rule,
|
|
tolerance, antialias, extents);
|
|
}
|
|
|
|
static cairo_bool_t
|
|
_test_meta_surface_has_show_text_glyphs (void *abstract_surface)
|
|
{
|
|
test_meta_surface_t *surface = abstract_surface;
|
|
|
|
return cairo_surface_has_show_text_glyphs (surface->meta);
|
|
}
|
|
|
|
static cairo_int_status_t
|
|
_test_meta_surface_show_text_glyphs (void *abstract_surface,
|
|
cairo_operator_t op,
|
|
const cairo_pattern_t *source,
|
|
const char *utf8,
|
|
int utf8_len,
|
|
cairo_glyph_t *glyphs,
|
|
int num_glyphs,
|
|
const cairo_text_cluster_t *clusters,
|
|
int num_clusters,
|
|
cairo_text_cluster_flags_t cluster_flags,
|
|
cairo_scaled_font_t *scaled_font,
|
|
cairo_rectangle_int_t *extents)
|
|
{
|
|
test_meta_surface_t *surface = abstract_surface;
|
|
|
|
surface->image_reflects_meta = FALSE;
|
|
|
|
return _cairo_surface_show_text_glyphs (surface->meta, op, source,
|
|
utf8, utf8_len,
|
|
glyphs, num_glyphs,
|
|
clusters, num_clusters, cluster_flags,
|
|
scaled_font, extents);
|
|
}
|
|
|
|
|
|
static cairo_surface_t *
|
|
_test_meta_surface_snapshot (void *abstract_other)
|
|
{
|
|
test_meta_surface_t *other = abstract_other;
|
|
|
|
return _cairo_surface_snapshot (other->meta);
|
|
}
|
|
|
|
static const cairo_surface_backend_t test_meta_surface_backend = {
|
|
CAIRO_INTERNAL_SURFACE_TYPE_TEST_META,
|
|
NULL, /* create_similar */
|
|
_test_meta_surface_finish,
|
|
_test_meta_surface_acquire_source_image,
|
|
_test_meta_surface_release_source_image,
|
|
NULL, /* acquire_dest_image */
|
|
NULL, /* release_dest_image */
|
|
NULL, /* clone_similar */
|
|
NULL, /* composite */
|
|
NULL, /* fill_rectangles */
|
|
NULL, /* composite_trapezoids */
|
|
NULL, /* create_span_renderer */
|
|
NULL, /* check_span_renderer */
|
|
NULL, /* copy_page */
|
|
_test_meta_surface_show_page,
|
|
NULL, /* set_clip_region */
|
|
_test_meta_surface_intersect_clip_path,
|
|
_test_meta_surface_get_extents,
|
|
NULL, /* old_show_glyphs */
|
|
NULL, /* get_font_options */
|
|
NULL, /* flush */
|
|
NULL, /* mark_dirty_rectangle */
|
|
NULL, /* scaled_font_fini */
|
|
NULL, /* scaled_glyph_fini */
|
|
_test_meta_surface_paint,
|
|
_test_meta_surface_mask,
|
|
_test_meta_surface_stroke,
|
|
_test_meta_surface_fill,
|
|
NULL, /* show_glyphs */
|
|
_test_meta_surface_snapshot,
|
|
NULL, /* is_similar */
|
|
NULL, /* reset */
|
|
NULL, /* fill_stroke */
|
|
NULL, /* create_solid_pattern_surface */
|
|
NULL, /* can_repaint_solid_pattern_surface */
|
|
_test_meta_surface_has_show_text_glyphs,
|
|
_test_meta_surface_show_text_glyphs
|
|
};
|